Sidney leetham



(No Model.)

s. LEETEAM.

EEED REGULATOR EOE EoLLE-E MILLS, EQ. No. 329,057.

Patented 001;. 27, 1885.

N. PZTUIS. www Wnhinpm D. C.

0, preferably of metal, though not necessarily pivots d, adjustable, when preferred, in a ver i UNITEn SrATEs l SIDNEY LEETHAM, OF YORK, COUNTY OF YORK, ENGLAND.

FEED-REGULATOR FOR ROLLER-MILLS, 86C.

SFECIFICATION forming part of Letters Patent No. 329,057, dated October 27, 1885.

Application lilcd December 3, i883. Serial No. 113,412.

.To all whom it may concern: p

Beit known that I, SIDNEY LEETHAM, of the city and county of York, England, have invented a new and useful Improvement inVV Feed Regulators for Roller Mills, 85C., of which the following is a specification.

y My invention has for its object the regu-lation of the feed of the material to the rollers and puriliers employed in the manufacture of flour.

Figure l is a longitudinal section, and Fig. 2 a cross-section through A B, Fig. 1,' showing my improvements, in which the hopper a and the roller b may be of ordinary construction used in the manufacture of flour.

The hopper a has provided within it aplatc,

so, such plate being suspended on hinges or tical direction, the lower end of said plate c being in close contact with the feed-roller b,- but in practice a better effect is produced when the plate c hangs slightly inclined from the vertical position, as shown in Fig. 2.

The material to be operated upon is passed into the hopperyin the direction shown by the arrow, but cannot escape unt-il suiicient weight of such material has passed between the side a of the hopper and the hinged plate (No model) Patented in England August13,183. No. 23,912.

c to cause the lower end, c', ofthe hinged plate to leave the roller b, so that an opening or passage is at once provided for the material as it is conducted by the revolving roller and delivered so as to be operated upon by the machinery. The power or weight required to raise thc plate c from the roller b is regulated by varying the tension of the spring f, attached to the hopper a at g, or to the framework h, (which is passed into the hopper into the position shown, and on which the plate c is suspended,) and to the hinged plate c at any convenient point. The frame-work h is shown within the hopper a as a convenient way of applying these improvements; but it may be dispensed with, and the plate c hinged or suspended in the sides ofthe hopper a.

l claim as my inventionM rlhe combination, with the feed-hopper a and roller b, of the swinging plate or valve c within the hopper, and pivoted thereto at d d, intermediately between its top and bottom, and a spring connected at the top of the valve for pressing the bottom edge toward the feedroller, substantially as described and shown.

SIDNEY LEETHAM. Vitnesses:

J M. HAEDING, J. CLARK JEFFERSON. 

